Frost-calk for horseshoes.



WITNESSES A. J. BARTLETT. I FROST GALK FOR aomssxzozs,

APPLICATION FILED PEBJ, 1906.

IN VE/V T 0/7.

PATENTED AUG. 11, 1908.

UNITED STATES PATENT OFFICE. ALBERT J. BARTLETT, OF SHELBYVILLE, KENTUCE: ASSIGNOR ONE-HALF TO GUS T.

OLEARY, OF SHELBYVILLE, KENTUCKY. I

FROST-CALK FOB Honsssnons.

Specification of Letters Patent;

Patented Aug. 11, 1908.

Application filed February 5, 1906. Serial No. 299,454.

T all whom it may concern:

Be itknown that I, ALBERT J. BARTLETT, a citizen of the United States, residing at Shelbyville, in the county of Shelby and "State of Kentucky, have invented a new and and quickly and easily removed and renewed, security against breakage or accidental loss, durability, and effectiveness. Theseobjeets I attain by means of the device illustrated in the accompanying drawings, in wl1ieh- V.

Figure I is a plan view; Fig. 2, a vertical transverse section on the line A-B of Fig. 1 Fig. 3, a vertical transverse section on the line (D of Fig. 1 Fig. 4, a plan view of the reverse side of the calk; and, Fig. 5, an edge view.

Similar reference numerals refer to similar parts throughout the several views of the drawing,

The frost-calk 1 is adapted to fit on an ordinary horseshoe, 2, so that a special shoe need not be provided, and is intended to fit on anv size shoe. The calk consists of a plate having a plane face to fit a ainst the tread of the horseshoe and provided on its plane face with aprojection or flange, 9, so disposed on its face that it fits into the nail groove of the shoe, as shown in Fig. 2. On its outer edge the plate is )rovided with a curved flange, 6, of suitable orm to embrace the outer edge of the shoe. On the outer surface or the surface 0 )posite that which works against the tread o' the shoe, the calkplate is provided with points, 3, preferably of conical form and disposed over the nailgroove and the flange 9. The flange 9 is cut out or provided with notches at two places to provide spaces through which nails, 8, may pas the notches registering with nail Ali-05 4 and 5 through the calk-plate. The

nail hole?) is disposed between the ealkpoints 3 and is of a size suitable to receive an ordinary horseshoe nail, having its sides ta pered correspondingly with the head of the nail. correspond with the head of the hat and is elongated in order to adapt the calk-plate to The hole 4 also has its sides ta )ered to fit shoes of different sizes in which the nail holes are variously spaced. The plate 1 is curved as to its inner edge and tapered or feathered as shown at 7. The calk-plate may be drop forged or cast of steel that may be hardened. The calk-points 3 are hardened so as to withstand the wear against the roads, but the rest of the plate is left malleable so that portion 7 may be hammered down and bent over to embrace the inner edge of the shoe, as shown in Fig. 3.

The application and use of the device will now be obvious. The horse maybe shod with plain shoes without too calks)"; When the roads become covered with ice, the two front nails on each side may be removetbby filing off the clench and withdrawingOtle nails, the frost-calk may be applied, care e v ing taken to remove the dirt from the nail{\ groove, so that flange 9 fits therein. the frost-calk is in position on the shoe, nails of suitably larger size may be driven into the old holes, clenched as usual, and portion 7 hammered down against the inner edge of the shoe. This requires but a few moments and the horse is roughed ready for work. llVhen the points 3 become dull, the old frost-calks may be removed and discarded and new ones ap died in the manner previously described. WVhen they are no lou er needed, as in continued fair weather, they may be removed and the shoe fastened with suitable nails in the usual manner. The flanges 6 and 9 take the thrustdue to ramming the foot against the hard street and prevent the shearing of the nails and consequentloosening and losing of the calk. If the calk should become loose and begin to snap or rattle on the shoe, the nails may be drawn up, the clench hammered down and the difficulty thus overcome. The points 3 being well out; towards the edge of the shoe and towards the front provides a secure and firm footing.

A single nail hole, 5, may be provided and the hole 4 with the portion of the plate occupied by it may be omitted without departing front the spirit of my invention.

Having thus described my invention so that any one skilled in the art pertaining 5 a plate, calk-points integral with said plate,

i face of said plate that works against the groove of the shoe, said plate being provided I tread of the shoe to enter the nail-groove of with nail holes in the line on which said calk- 10 the shoe, substantially as specified. points and said inner flange are arranged, 2. A frost-call; for horseshoes, comprising 1 substantially as specified.

ALBERT J. BARTLETT.

Witnesses:

SoL. FLEXNER,

' JOHN 0. Reason.

an external zip-turned flange integral with sald plate to embrace the outer edge of the shoe and an inner flange to work 1n the nail- 

